Pakistan coach Intikhab Alam said he accepted full responsibility for his team's dismal performance on its tour of Australia last month, and vowed not to run away from any investigation.

Pakistan was whitewashed 3-0 in the Tests and 5-0 in the one-dayers and lost the only Twenty20 match on the tour - results which prompted former players and fans to demand an overhaul of the team and management.

Chief selector Iqbal Qasim last week resigned, but Alam said he would not make any premature comments.

"I will not run away and will face an investigation," he said after the team's return home early Sunday.

"I am not going to comment on any resignation but I take full responsibility for the defeat."

Pakistan captain Mohammad Yousuf, who returned to Pakistan on Wednesday, also vowed to continue as skipper despite a hint from the Pakistan Cricket Board (PCB) that there will be a change in the captaincy.

PCB last week announced a six-man evaluation committee to investigate the defeats, which Alam said were due to poor fielding and batting.

"It was a disappointing tour but if you look into the history, Pakistan has never performed well on a tour of Australia," he said.

"Our fielding was very poor and batsmen lacked determination and their shot selection was bad."

This was Pakistan's fourth straight 3-0 Test series whitewash against Australia, having lost by the same margin on the tours in 1999 and 2004.

Australia also beat them 3-0 when the series was played on neutral venues of Colombo and Sharjah in 2002.

The team was whisked away from Karachi's old airport terminal due to security problems in the city, where 33 people were killed in twin bomb blasts amid sectarian violence on Friday.

Alam denied there was any rift in the team.

"Talk of grouping is baseless and rumours. Such things come when the team loses," said Alam, who replaced Australian Geoff Lawson in October 2008.

"Australia is still the best team in the world and they played well.

"Australia lost a home Test series against South Africa, were defeated in Tests in India and handed Ashes to England in the last two years, but their people backed them and they have regrouped. We should also back our team."

Alam said he would give the PCB a detailed report on the team's performance.

When asked about all-rounder Shahid Afridi's ball-tampering case, Alam said "every team in the world does tamper with the ball, but Afridi's style was unacceptable and different".

Afridi, leading Pakistan in the fifth one-day at Perth last Sunday, was caught biting the ball on two separate occasions. He was banned for two Twenty20 matches.

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